CN108682842A - A kind of Y doping CaMnO3Tertiary cathode material of cladding and preparation method thereof - Google Patents
A kind of Y doping CaMnO3Tertiary cathode material of cladding and preparation method thereof Download PDFInfo
- Publication number
- CN108682842A CN108682842A CN201810244065.9A CN201810244065A CN108682842A CN 108682842 A CN108682842 A CN 108682842A CN 201810244065 A CN201810244065 A CN 201810244065A CN 108682842 A CN108682842 A CN 108682842A
- Authority
- CN
- China
- Prior art keywords
- camno
- cladding
- tertiary cathode
- cathode material
- doping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention is suitable for field of lithium, provides a kind of Y doping CaMnO3Tertiary cathode material of cladding and preparation method thereof prepares the once sintered product of nickle cobalt lithium manganate, then prepares CaMnO first3And crush, it is uniformly mixed with once sintered product after then diluting yttrium hydroxide colloidal sol, then stirring is evaporated until material is in powdered, finally by the CaMnO after crushing3It uniformly mixes, be sintered with rear material is evaporated, crush, be sieved thereafter, removing iron, it is final to obtain nickle cobalt lithium manganate tertiary cathode material finished product.The matrix of tertiary cathode material of the present invention is the nickle cobalt lithium manganate of Y element doping, can stablize the crystal structure of ternary material, improve the cycle performance of material；Meanwhile Y element enters CaMnO3Clad can also improve clad conductivity.
Description
Technical field
The invention belongs to field of lithium more particularly to a kind of Y to adulterate CaMnO3The tertiary cathode material and its system of cladding
Preparation Method.
Background technology
Ternary anode material of lithium battery has higher energy density and better simply preparation process, is widely used in number
The fields such as product, electric tool and new-energy automobile.In recent years, traditional compact low power lithium battery cannot fully meet city
Field demand, the electronic products such as some electric tools, model plane require battery being capable of high-multiplying power discharge；New-energy automobile develops also to lithium
Battery, which proposes, needs discharge current big and the higher new demand of power.The safety of tertiary cathode material, high rate charge-discharge
Performance, cycle performance etc. are always focus.For safety, it is swollen that material is typically improved by surface modification
Side reaction etc. between gas and electrolyte, however commercialized modified material is usually metal oxide at present, with structure
The advantages such as stablize, do not reacted with basis material, but disadvantage is then lower conductivity (influencing material capacity).
Invention content
In view of the above problems, the purpose of the present invention is to provide a kind of Y to adulterate CaMnO3The tertiary cathode material of cladding and
Preparation method, it is intended to solve the relatively low technical problem of existing tertiary cathode material conductivity.
On the one hand, the Y adulterates CaMnO3The preparation method of the tertiary cathode material of cladding includes the following steps：
Step S1, by ternary material precursor NixCoyMn1-x-y(OH)2It is allocated by a certain percentage with lithium source, while nothing is added
Then water-ethanol or propyl alcohol mixing are sintered, crush, sieving obtains once sintered product；
Step S2, calcium source and manganese source are dissolved in absolute ethyl alcohol and are stirred, gel colloidal sol is made, then burns colloidal sol
Knot obtains CaMnO3, finally by CaMnO3It crushes；
Step S3, yttrium hydroxide colloidal sol is uniformly mixed after being diluted using ultra-pure water with the obtained once sintered products of step S1
It closes, then stirring is evaporated until material is in powdered；
Step S4, by the CaMnO after crushing3It uniformly mixes, be sintered with the material that step S3 is obtained, crush, be sieved thereafter,
It is final to obtain Y doping, CaMnO except iron3The nickle cobalt lithium manganate tertiary cathode material finished product of cladding.
On the other hand, Y doping provided by the invention, CaMnO3The tertiary cathode material of cladding is prepared by the above method
It arrives, material matrix is the nickle cobalt lithium manganate of Y doping, and outer layer is the CaMnO of Y doping3Clad.
The beneficial effects of the invention are as follows：The matrix of tertiary cathode material of the present invention is the nickle cobalt lithium manganate of Y element doping, energy
The crystal structure for enough stablizing ternary material, improves the cycle performance of material；Meanwhile Y element enters CaMnO3Clad can also carry
High clad conductivity.
Description of the drawings
Fig. 1 is that first embodiment of the invention provides；
Fig. 2 is the first circle capacity comparison figure of embodiment one and comparative example one；
Fig. 3 is the cycle performance comparison diagram of embodiment one and comparative example one.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Y provided by the invention adulterates CaMnO3The preparation method of the tertiary cathode material of cladding, includes the following steps：
Step S1, by ternary material precursor NixCoyMn1-x-y(OH)2It is allocated by a certain percentage with lithium source, while nothing is added
Then water-ethanol or propyl alcohol mixing are sintered, crush, sieving obtains once sintered product.
In this step, the lithium source is LiOH, Li2CO3Or Li2C2O4, ternary material precursor and lithium source according to 1.00≤
Li:(Ni+Co+Mn)≤1.10 absolute ethyl alcohol or third is added in molar ratio allotment, ternary material precursor quality 10%~50%
Alcohol mixes 0.5~2h, and 5~10h is then sintered under the conditions of 700~900 DEG C, crushes thereafter, being sieved obtains once sintered product
LiNixCoyMn1-x-yO2, wherein 0.6≤x≤0.7,0.1≤y≤0.2.
Step S2, calcium source and manganese source are dissolved in absolute ethyl alcohol and are stirred, gel colloidal sol is made, then burns colloidal sol
Knot obtains CaMnO3, finally by CaMnO3It crushes.
In this step, the calcium source is one kind in calcium carbonate, calcium oxalate, calcium sulfate, calcium nitrate, and the manganese source is oxidation
One kind in manganese, manganese carbonate, manganous hydroxide, calcium source and manganese source are according to molar ratio Ca：Mn=1：1 is dissolved in absolute ethyl alcohol, in 25-
50 DEG C are stirred 0.5~2h, and gel colloidal sol is made, and 3~8h is sintered under the conditions of colloidal sol is then placed in 800-950 DEG C, is obtained
To CaMnO3, finally by CaMnO3It is crushed to 200nm or less.
Step S3, yttrium hydroxide colloidal sol is uniformly mixed after being diluted using ultra-pure water with the obtained once sintered products of step S1
It closes, then stirring is evaporated until material is in powdered.
In this step, colloidal sol uniformly mixes after diluting 1-10 times using ultra-pure water with once sintered product, stir and be evaporated 1~
5h until material in powdered, and material surface water content≤3000ppm.
Step S4, by the CaMnO after crushing3It uniformly mixes, be sintered with the material that step S3 is obtained, crush, be sieved thereafter,
It is final to obtain Y doping, CaMnO except iron3The nickle cobalt lithium manganate tertiary cathode material finished product of cladding.
In this step, by the CaMnO after crushing30.5~3h uniformly is mixed with the dusty material after being evaporated, is then existed
It is sintered 5~10h under the conditions of 700~900 DEG C, crushes thereafter, be sieved, remove iron, finally obtains Y doping, CaMnO2The nickel cobalt of cladding
LiMn2O4 tertiary cathode material finished product, expression formula LiNixCoyMn1-x-yYqO2·gCaMnYpO3, wherein 0.6≤x≤0.7,
0.1≤y≤0.2,0.0001≤p+q≤0.002,0.0002≤g≤0.003.
Finally obtained Y doping, CaMnO3The tertiary cathode material of cladding, matrix are the nickle cobalt lithium manganate of Y doping, outer layer
For the CaMnO of Y doping3Clad.
Material result of the present invention is verified below by specific embodiment and comparative example.
Embodiment one：
1) by 100g ternary material precursors Ni0.6Co0.2Mn0.2(OH)2With LiOH according to Li:(Ni+Co+Mn)=1.06
Molar ratio allotment, while 40g absolute ethyl alcohol mixing 0.5-2h are added, are then sintered 8h under the conditions of 750 DEG C, crushing thereafter,
Sieving obtains once sintered product LiNi0.6Co0.2Mn0.2O2。
2) by calcium carbonate and manganese oxide according to molar ratio Ca：Mn=1：1 is dissolved in absolute ethyl alcohol, is stirred at 25 DEG C
Gel colloidal sol is made in 2h.Under the conditions of colloidal sol is then placed in 950 DEG C, it is sintered 5h, obtains CaMnO3.Finally by CaMnO3It crushes
To 200nm or less.
3) it uniformly mixes and stirs with once sintered product described in step 1) after YOH colloidal sols being diluted 10 times using ultra-pure water first
It is in powdered to mix and be evaporated 3h to material, and material surface water content is 400ppm.
4) CaMnO after crushing step 2)31h is uniformly mixed with the rear dusty material that is evaporated that step 3) obtains, then
It is sintered 6h under the conditions of 870 DEG C, crushes, be sieved thereafter, obtaining Y doping, CaMnO except iron2Coat nickel-cobalt lithium manganate material finished product
LiNi0.6Co0.2Mn0.2Y0.001O2·0.001CaMnY0.0003O3, electron microscope is as shown in Figure 1.
By the Y doping of preparation, CaMnO2Cladding nickel-cobalt lithium manganate material finished product is fabricated to button cell test electrical property, button
Electrode component weight ratio in formula is active material：Conductive agent (acetylene black)：Binder (PVDF)=90:5:5；Cathode uses
Lithium piece.At 25 DEG C, 0.2C discharge capacities are 178mAh/g for the first time, and the conservation rate of efficiency 89.3%, 50 circle of cycle is
99.2%.
Comparative example one：
By 100g ternary material precursors Ni0.6Co0.2Mn0.2(OH)2With LiOH according to Li:(Ni+Co+Mn)=1.06
Molar ratio is allocated, and after uniformly mixing 2h, 15h is sintered under the conditions of 850 DEG C.Thereafter material disintegrating is sieved, obtains required nickel cobalt
LiMn2O4 ternary material.
Cobalt nickel lithium manganate ternary material obtained is fabricated to button cell and tests electrical property, the electrode component weight in button
Amount ratio is active material：Conductive agent (acetylene black)：Binder (PVDF)=90:5:5；Cathode uses lithium piece.It is first at 25 DEG C
Secondary charge/discharge capacity is 173mAh/g, and efficiency 86.5%, 50 circle conservation rate of cycle is 96.0%.
Test result is as shown in Figure 2,3, it is known that, positive electrode of the present invention adulterates CaMnO by internal layer Y doping, outer layer Y3
After cladding, discharge capacity and cycle performance are significantly improved material for the first time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (6)
1. a kind of Y adulterates CaMnO3The preparation method of the tertiary cathode material of cladding, which is characterized in that the method includes following
Step：
Step S1, by ternary material precursor NixCoyMn1-x-y(OH)2It is allocated by a certain percentage with lithium source, while anhydrous second is added
Then alcohol or propyl alcohol mixing are sintered, crush, sieving obtains once sintered product；
Step S2, calcium source and manganese source are dissolved in absolute ethyl alcohol and are stirred, gel colloidal sol is made, is then sintered colloidal sol
To CaMnO3, finally by CaMnO3It crushes；
Step S3, yttrium hydroxide colloidal sol after ultra-pure water dilution with the once sintered product that step S1 is obtained using uniformly mixing, so
Stirring is evaporated until material is in powdered afterwards；
Step S4, by the CaMnO after crushing3It uniformly mixes, be sintered with the material that step S3 is obtained, crush thereafter, be sieved, remove iron,
It is final to obtain Y doping, CaMnO3The nickle cobalt lithium manganate tertiary cathode material finished product of cladding.
2. Y adulterates CaMnO as described in right wants 13The preparation method of the tertiary cathode material of cladding, which is characterized in that step S1
In, the lithium source is LiOH, Li2CO3Or Li2C2O4, ternary material precursor is with lithium source according to 1.00≤Li:(Ni+Co+Mn)≤
1.10 molar ratio allotment, while absolute ethyl alcohol or propyl alcohol mixing is added according to ternary material precursor quality 10%~50%
Then 0.5~2h is sintered 5~10h under the conditions of 700~900 DEG C, crush thereafter, being sieved obtains once sintered product
LiNixCoyMn1-x-yO2, wherein 0.6≤x≤0.7,0.1≤y≤0.2.
3. Y adulterates CaMnO as described in right wants 13The preparation method of the tertiary cathode material of cladding, which is characterized in that step S2
In, the calcium source is one kind in calcium carbonate, calcium oxalate, calcium sulfate, calcium nitrate, and the manganese source is manganese oxide, manganese carbonate, hydrogen-oxygen
Change one kind in manganese, calcium source and manganese source are according to molar ratio Ca：Mn=1：1 is dissolved in absolute ethyl alcohol, is stirred at 25-50 DEG C
Gel colloidal sol is made in 0.5~2h, and 3~8h is sintered under the conditions of colloidal sol is then placed in 800-950 DEG C, obtains CaMnO3, finally
By CaMnO3It is crushed to 200nm or less.
4. Y adulterates CaMnO as described in right wants 13The preparation method of the tertiary cathode material of cladding, which is characterized in that step S3
In, colloidal sol uniformly mixes after diluting 1-10 times using ultra-pure water with the once sintered product that step S1 is obtained, and stirring is evaporated 1~5h
Until material is in powdered, and material surface water content≤3000ppm.
5. Y adulterates CaMnO as described in right wants 13The preparation method of the tertiary cathode material of cladding, which is characterized in that step S4
In, by the CaMnO after crushing30.5~3h uniformly is mixed with the material that step S3 is obtained, is then burnt under the conditions of 700~900 DEG C
5~10h of knot is crushed, is sieved, is removed iron thereafter, finally obtains Y doping, CaMnO2The nickle cobalt lithium manganate tertiary cathode material of cladding
Finished product, expression formula LiNixCoyMn1-x-yYqO2·gCaMnYpO3, wherein 0.6≤x≤0.7,0.1≤y≤0.2,0.0001
≤ p+q≤0.002,0.0002≤g≤0.003.
6. a kind of Y adulterates CaMnO3The tertiary cathode material of cladding, which is characterized in that the Y doping, CaMnO3The ternary of cladding
Positive electrode is prepared by any one of such as claim 1-5 the methods, and material matrix is the nickle cobalt lithium manganate of Y doping, outside
Layer is the CaMnO of Y doping3Clad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244065.9A CN108682842B (en) | 2018-03-23 | 2018-03-23 | Y-doped CaMnO3Coated ternary positive electrode material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244065.9A CN108682842B (en) | 2018-03-23 | 2018-03-23 | Y-doped CaMnO3Coated ternary positive electrode material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108682842A true CN108682842A (en) | 2018-10-19 |
| CN108682842B CN108682842B (en) | 2021-03-30 |
Family
ID=63799659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810244065.9A Active CN108682842B (en) | 2018-03-23 | 2018-03-23 | Y-doped CaMnO3Coated ternary positive electrode material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108682842B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381006A (en) * | 2021-06-10 | 2021-09-10 | 中国科学院过程工程研究所 | Composite cathode material, preparation method thereof and lithium ion battery |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924095A (en) * | 2006-09-01 | 2007-03-07 | 清华大学 | Oxide based diluted magnetic semiconductor thin film with room temperature ferromagnetism and preparation method thereof |
| CN102544573A (en) * | 2010-12-28 | 2012-07-04 | 索尼公司 | Lithium ion secondary battery, electric tool, electric vehicle and electric power storage system |
| US20120231322A1 (en) * | 2011-03-10 | 2012-09-13 | Hee-Young Chu | Positive active material for rechargeable lithium battery, method of manufacturing the same and rechargeable lithium battery using the same |
| CN102769128A (en) * | 2011-05-04 | 2012-11-07 | 三星电子株式会社 | Electrode active material, preparation method thereof, and electrode and lithium battery containing the same |
| EP2595234A2 (en) * | 2011-11-18 | 2013-05-22 | Samsung Electronics Co., Ltd | Cathode active material, cathode and lithium battery using the same |
| CN103682326A (en) * | 2013-12-13 | 2014-03-26 | 南通瑞翔新材料有限公司 | High-capacity lithium cobalt oxide-base lithium ion battery anode material and preparation method thereof |
| US20140120378A1 (en) * | 2012-10-25 | 2014-05-01 | Samsung Fine Chemicals Co., Ltd. | Composite cathode active material, method of preparing the composite cathode active material, and cathode and lithium battery each including the composite cathode active material |
| CN103872328A (en) * | 2014-03-12 | 2014-06-18 | 南通瑞翔新材料有限公司 | Positive electrode active material for lithium ion secondary battery and preparation method for positive electrode active material |
| CN104087913A (en) * | 2014-06-11 | 2014-10-08 | 韩冰 | Chemical composition used for increasing growth of inert silicon compound on surface of substrate |
| CN104685677A (en) * | 2013-09-30 | 2015-06-03 | 株式会社Lg化学 | Cathode active material for secondary battery and method for preparing same |
| CN104904043A (en) * | 2013-01-31 | 2015-09-09 | 汉阳大学校产学协力团 | Anode active material for lithium secondary battery, method for fabricating same, and lithium secondary battery using same |
| EP2879213A4 (en) * | 2013-09-30 | 2015-11-04 | Lg Chemical Ltd | Cathode active material for secondary battery and method for preparing same |
| CN106450242A (en) * | 2016-12-14 | 2017-02-22 | 先雪峰 | Compound active substance of lithium-ion battery, preparation method thereof, electrode slurry and anode or cathode of lithium-ion battery and lithium-ion battery |
| US9859555B2 (en) * | 2014-02-07 | 2018-01-02 | Samsung Sdi Co., Ltd. | Positive active material, positive electrode, lithium battery including the same, and method of manufacturing thereof |
| CN107534126A (en) * | 2015-01-15 | 2018-01-02 | 珍拉布斯能源有限公司 | For positive electrode active materials of the high-energy density secondary battery with composite coating and corresponding technique |
| CN107666011A (en) * | 2016-07-28 | 2018-02-06 | 微宏动力***（湖州）有限公司 | A kind of nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery |
-
2018
- 2018-03-23 CN CN201810244065.9A patent/CN108682842B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924095A (en) * | 2006-09-01 | 2007-03-07 | 清华大学 | Oxide based diluted magnetic semiconductor thin film with room temperature ferromagnetism and preparation method thereof |
| CN102544573A (en) * | 2010-12-28 | 2012-07-04 | 索尼公司 | Lithium ion secondary battery, electric tool, electric vehicle and electric power storage system |
| US20160133923A1 (en) * | 2010-12-28 | 2016-05-12 | Sony Corporation | Lithium ion secondary battery, electric tool, electric vehicle, and power storage system |
| US20120231322A1 (en) * | 2011-03-10 | 2012-09-13 | Hee-Young Chu | Positive active material for rechargeable lithium battery, method of manufacturing the same and rechargeable lithium battery using the same |
| CN102769128A (en) * | 2011-05-04 | 2012-11-07 | 三星电子株式会社 | Electrode active material, preparation method thereof, and electrode and lithium battery containing the same |
| EP2595234A3 (en) * | 2011-11-18 | 2015-03-25 | Samsung Electronics Co., Ltd | Cathode active material, cathode and lithium battery using the same |
| EP2595234A2 (en) * | 2011-11-18 | 2013-05-22 | Samsung Electronics Co., Ltd | Cathode active material, cathode and lithium battery using the same |
| US20140120378A1 (en) * | 2012-10-25 | 2014-05-01 | Samsung Fine Chemicals Co., Ltd. | Composite cathode active material, method of preparing the composite cathode active material, and cathode and lithium battery each including the composite cathode active material |
| CN104904043A (en) * | 2013-01-31 | 2015-09-09 | 汉阳大学校产学协力团 | Anode active material for lithium secondary battery, method for fabricating same, and lithium secondary battery using same |
| EP2879213A4 (en) * | 2013-09-30 | 2015-11-04 | Lg Chemical Ltd | Cathode active material for secondary battery and method for preparing same |
| CN104685677A (en) * | 2013-09-30 | 2015-06-03 | 株式会社Lg化学 | Cathode active material for secondary battery and method for preparing same |
| CN103682326A (en) * | 2013-12-13 | 2014-03-26 | 南通瑞翔新材料有限公司 | High-capacity lithium cobalt oxide-base lithium ion battery anode material and preparation method thereof |
| US9859555B2 (en) * | 2014-02-07 | 2018-01-02 | Samsung Sdi Co., Ltd. | Positive active material, positive electrode, lithium battery including the same, and method of manufacturing thereof |
| CN103872328A (en) * | 2014-03-12 | 2014-06-18 | 南通瑞翔新材料有限公司 | Positive electrode active material for lithium ion secondary battery and preparation method for positive electrode active material |
| CN104087913A (en) * | 2014-06-11 | 2014-10-08 | 韩冰 | Chemical composition used for increasing growth of inert silicon compound on surface of substrate |
| CN107534126A (en) * | 2015-01-15 | 2018-01-02 | 珍拉布斯能源有限公司 | For positive electrode active materials of the high-energy density secondary battery with composite coating and corresponding technique |
| CN107666011A (en) * | 2016-07-28 | 2018-02-06 | 微宏动力***（湖州）有限公司 | A kind of nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery |
| CN106450242A (en) * | 2016-12-14 | 2017-02-22 | 先雪峰 | Compound active substance of lithium-ion battery, preparation method thereof, electrode slurry and anode or cathode of lithium-ion battery and lithium-ion battery |
Non-Patent Citations (1)
| Title |
|---|
| IAN D. FAWCETT: "Structure, Magnetism, and Properties of Ruddlesden-Popper Calcium Manganates Prepared from Citrate Gels", 《CHEMISTRY OF MATERIALS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381006A (en) * | 2021-06-10 | 2021-09-10 | 中国科学院过程工程研究所 | Composite cathode material, preparation method thereof and lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108682842B (en) | 2021-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105958042B (en) | A kind of fabricated in situ Li2MnO3The anode material for lithium-ion batteries and its synthetic method of coating modification | |
| CN102983326B (en) | Spherical lithium-nickel-cobalt composite oxide positive electrode material preparation method | |
| CN106784655B (en) | A kind of coating modification method improving lithium-rich manganese-based anode material performance | |
| CN108023078A (en) | A kind of nickelic tertiary cathode material of monocrystalline pattern and preparation method thereof | |
| CN106340638B (en) | A kind of high-rate lithium-rich manganese-based anode material of double layer hollow structure and preparation method thereof | |
| CN103794773B (en) | A kind of method of producing high power capacity 523 type tertiary cathode material | |
| CN109244365A (en) | Anode material for lithium-ion batteries and preparation method thereof, anode and lithium ion battery | |
| CN105161693B (en) | A kind of high circulation lithium electricity polynary positive pole material NCM and preparation method thereof | |
| CN104393285A (en) | Nickel-cobalt-aluminum ternary positive electrode material and its preparation method | |
| CN104916837A (en) | Preparation method of aluminum element doped ternary positive electrode material | |
| CN109461928A (en) | A kind of high-energy density polynary positive pole material and preparation method thereof | |
| CN104009252A (en) | Sodium-ion battery and preparation method thereof | |
| CN103606675B (en) | A kind of preparation method of lithium-nickel-cobalt-oxygen positive electrode of metal ion mixing | |
| CN102916171B (en) | Concentration-gradually-changed spherical lithium nickel manganese oxide cathode material and preparation method thereof | |
| CN109962233A (en) | A kind of class monocrystalline positive electrode of gradient type and preparation method thereof | |
| CN106058241A (en) | Ce1-xZrxO2 nano solid solution homogenate modified lithium ion battery anode material and preparation method thereof | |
| CN109873140A (en) | A kind of silicon/carbon/graphite in lithium ion batteries alkene complex ternary positive electrode and preparation method thereof | |
| CN113998745B (en) | Cobalt-free cathode material and preparation method and application thereof | |
| CN103715422B (en) | Electrolysis prepares the method for the nickelic system positive electrode of lithium ion battery | |
| CN107768634A (en) | A kind of ion doping and Surface coating modify anode material for lithium-ion batteries and preparation method thereof jointly | |
| CN113871603A (en) | High-nickel ternary cathode material and preparation method thereof | |
| CN105826550A (en) | Preparation method of lithium manganate cathode material with ferri-containing compound coating | |
| CN103367733A (en) | Lithium ion battery cathode material and preparation method thereof and lithium ion battery | |
| CN108269998A (en) | A kind of preparation method of polynary positive pole material of lithium ion cell | |
| CN114094068A (en) | Cobalt-coated positive electrode material, preparation method thereof, positive plate and lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211224 Address after: 448000 No. 8 Yingbin Avenue, Duodao District, Jingmen City, Hubei Province (greenmei new energy) Patentee after: Greenmei (Hubei) new energy materials Co.,Ltd. Address before: No.214142, xinshuofang Road, Wuxi City, Jiangsu Province Patentee before: GEM (WUXI) ENERGY MATERIAL Co.,Ltd. Patentee before: Greenmei Co., Ltd |
|
| TR01 | Transfer of patent right |